This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A326510 #10 Feb 16 2025 08:33:58 %S A326510 1,1,2,5,12,23,44,76,131,219,390,600,971,1469,2424,3328,5090,7138, %T A326510 11160,14397,21237,28018,41944,51464,73734,92806,134244,159128,222578, %U A326510 269926,379520,437776,599719,706183,969590,1095469,1473434,1694393,2279460,2532548 %N A326510 Number of (binary) max-heaps on n elements from the set {0,1} containing exactly nine 0's. %H A326510 Alois P. Heinz, <a href="/A326510/b326510.txt">Table of n, a(n) for n = 9..10000</a> %H A326510 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Heap.html">Heap</a> %H A326510 Wikipedia, <a href="https://en.wikipedia.org/wiki/Binary_heap">Binary heap</a> %H A326510 <a href="/index/Rec#order_45">Index entries for linear recurrences with constant coefficients</a>, signature (1, 2, -2, 3, -3, -8, 8, 1, -1, 6, -6, -11, 11, 16, -16, 6, -6, -28, 28, 14, -14, 0, 0, -14, 14, 28, -28, -6, 6, -16, 16, 11, -11, -6, 6, -1, 1, 8, -8, -3, 3, -2, 2, 1, -1). %Y A326510 Column k=9 of A309049. %K A326510 nonn,easy %O A326510 9,3 %A A326510 _Alois P. Heinz_, Jul 09 2019